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W. J. BUCKLEY.

WELDING APPARATUS. Amlcmon man um. 19. ma. ncnswcn m. I8. 1920.

Patented Apr. 6, 1920 3 SHEETS-SHEET I.

Ml l/E N TOR A TTORNEY W. J. BUCKLEY. WELDING APPARATUS. APPLICATION HLED JAN. 19. 191B. RENEWED FEB 18, 1920.

w A TTORNEY WT]. BUCKLEY.

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, Patented Apr. 6, 1920.

APPLICATION FILED JAN. 19. 9E8. RENEWED FEB 18, I920.

3 SHEETS-SHEET 3.

IN VE N TOR ATTORNEY V between rolls, but di on which c uses the lips of the seem a cadet- Welding agent an oxy UNITED STATES PATENT OFFICE.

WILLIAM J. BUCKLEY, OF EAST ORANGE, NEW JERSEY. ASSIGNOR TO DAVIS-BOUBNON- VILLE COMPANY, OF JERSEY CITY,

NEW JERSEY, A CORPORATION OF NEW YORK.

WELDING APPARATUS.

Specification of Letters Patent.

Application filed January 19. 1918, Serial No. 212,557. Renewed February 18, 1920. Serial No. 359,540.

To all whom it may concern Be'it known that I, WILLIAM a citizen of the United States, dent of East Orange, i the county of Essex and State of New JQrsey', have invented new" and useful Welding Apparatus, of which the following is a specification.

The invention is concerned with the problem of uniting the seams of metal barrel bodies, large diameter tubes, metal boxes and other articles and bodies of sheet metal by theaid of machinery employing as the -acetylene or equiva- The welding torch has beenemgreat success as a hand impement for re air work and the like, and also in the mac ine welding of small diameter tubes, which can be re elled and clamped ty has been experienced in applying it economically and efiectively to machine weldin of large bodies and pieces because of tile heatin effect J. Bummer, and a resilent flame. ployed with the tore to warp and buckle, thus upsettiii r the uniformity of conditions upon whijcli machine welding is predicated. Variousinstrumentalities of a mechanical nature have been devised for holding the edges to be joined in the desired fixedrelation, but as the welding proceeds the forces set up in the, metal in advance of the flame become so urgent that it is exceedingly diflicult by such means to prevent displacement and consequent impairment or failure of the weld. In accordance with this invention the metal at opposite sides of the seam is held magnetically In this way a powerful and effective ho ding is secured, and the putting on and taking off of the articles is rendered easier, since instead of opening and closing cumbersome clamps all that is necessary is to manipulate a switch.

In the'accompanying drawings a number of applications of the invention are illustrated schematically, and it will be under stood that numerous others may be constructed and that'I have not endeavored to i show the precise details of the electro-mag- -torch upon an arm 3" with bodies of difi'erent diameters,

Fig. 3 is a vertical section through another embodiment;

Fig. 4 is a plan view of the same;

F ig. 5 is an enlarged cross-section of the magnetic support of this form with :1 cylindrical tubular body to be welded mounted thereon;

Figs. 6 and 7 are cross-sections showing means for adapting this form of support and holder for rectangular or prismatic bodies;

Fig. 8' is a side elevation of another embodiment for use in welding rectangular bodies. a body being shown in section; and

Fig. 9 is a cross-section through the same.

Reference will first be had to Figs. 1 and 2. The numeral 2 designates an oxy-acet lene welding torch, which is mechanical y suppoi'tcd and driven at a uniform distance from the seam and at a uniform speed, in a straight line, lengthwise thereof. This is preferably accomplished by mounting the projecting from a wheeled carriage 4, which travels upon suitable tracks 5 and carries an electric motor (5 geared to a worm 7 meshin with a fixed worm rack 8 between the tracis.

The work, which in this instance may be a large diameter tube a, is supported in the first instance upon a trough 9, which may be raised and lowered by suitable means 10 in a frame 11. The said frame supports sets or pairs of magnets 12 above and at opposite sides of the seam B to be united. The adjacent edges of these magnets are chamfered, as shown at 13, to admit the working extremity of the torch, and their lower corners are spaced apart sufliciently to expose the scam. The magnets are energized by coils 14, which are supplied with current from a suitable source. not shown, and the circuits of which may be opened and closed by conveniently located switches. The under portions 0 the'magnets may be shaped to conform to the upper are of the body a, but, in order that the machine ma be used it is preferable to employ separate adapters 15, which may be screwed or otherwise removably and adjustably secured to the magnets, as indicated, for example, at 16. Either or both of the magnets maybe adjusted transversely of the seam by means of screws. or the like 17,

In operation, the current being 011 the ill) roll It and the magnets, therefore, de'tnergized. a body sllt'li as (L is placed upon the trough or temporary support 9 and raised up close beneath the magnets. in whirh po sition it is turned it necessary in order to disposiits seam in a substantially ventral position. (urrent is now turned on to the mils. and. by the magnetir attraetion \.'lllt'll results. the top of the tube is elamped up ward against the magnets or against the in lei-posed adapters 15, whieh may constitutiin effect parts of the magnets. Final adjustment ol' the seam edges may be secured by slightly shifting the magnets in transrerse directions. The torch flame may now he lighted am] the torch caused to progress lengthwise over the seam, the. edges of \\'l|lt'll are held against all movement by the magnets. Needles to say. numerous r-hangi-s and refinements may be introduced in plat-- tire. For example, I have iiulii'ult-d {no magnets at a side. but instead there may be any desired number and the proportions. number and arrangenu-nt. ol' the rods and pole portion may he \aried. a may deemed mo t expedient.

In Figs. 1; to 5 the magnets 13" illl' t-onstitutwl as arms on whirl] to hang barrel bodies or the like u, llaeh arm preferably (")lillll'lStS two longitudinal lH\l\'Ps bearin; energ izing rods 14 at their inner ends. and a number of these arms maybe mounted in a suitable manner and in radiating relation upon a turret or post 20, whirl] is reroluhle about a vertiral axis 2.1. in order to bring the. arms sureessirely into operative relation to the torch meehani m. The torch 2 is mounted upon a earn. e 4 similar to that previously illustrated. In this instanre. however. the rarriage runs and drives upon a rail or trolle 22. which is supported in a lixed position by means, not shown. and hears the tracks .3 and the Park 8. ()mor both of the magnetic members of each arm are preferably transversely adjustable. as in dieated. by screws 17. Figs. (5 and 7 indirate how this form of machine may he used for welding prismatic bodies by placing suitable saddles or adapters 15, 15, preferably of magnetic material, upon the arms.

Figs. 8 and 9 illustrate another construetion lor welding rectangular or prismatic bodies. Four magnet liars 12" hearing suitable energizing coils, 14" are supported in horizontally projecting relation from a frame 27, their arrangement being that of a hollow s uare or rectangular. A body a, having a ongitudinal seam to be welded may 1 ,aaama he slipped orer these arms. or a rectangular tube or body may be built up by plaeing two sheets upon the bars and welding their adjueent edges, then applying another plate and welding it. and similarly with the l'ourtii. 'llusuiport 2.. may be mounted lo l' itult' about he horizontal axis 2t and the man" nets are adjustable toward and from the (enter to :u-eomuuulate bodies ol tlillt-rent dimensions by means of Htr(\\\ 37 or lilln-l' wise.

A feature of the invention not preiiousl referred to is the rooting of the magnet This is iieee sarr in order that the heating may not destroy the magnetism. For this purpose the iron bodies ol the magnets are to be constructed with interior spaces or channels 30. through Wl\l('ll eoolinguater oi other fluid is eireulatt-d, inlet and outlet pipes 31 and 32 being indieated as repre sentatire of a suitable riri-ulaloiw' systelii.

What ('lilllli as new is:

I. In apparatus for welding sheet metal.

the romliinalion ol' :1 ltttt'liilllhilll) sup ported welding torch, electro-magnetitmean for holding the lim-l metal work with its edge in fixed relal ion. and driving met-h ani in l'or produr-ing relathe movement la tween the tort'h and eleetro-niagnetie mean in the direetion ol the seam.

2. In apparatus for welding sheet metal, the ronihination of a mechanically supported welding tort-h, electro -magnetic means for holding the sheet metal work with its edges in lixed relation, means for cooling the magnetir holder, and driving; mechanism for producing relative movement between the torch and eleetrounagnetic means in the direction of the seam.

2%. ln apparatus of the character desi-ribed. the eombination of a miwhanieally supported welding torch. electro-magnetie means adapted to hold a hollow body with its straight edges to be united in fixed relation. and driving mechanism for producing relatire movement between the. torch and electro-magnetio means in the direction of the seam.

4. In apparatus of the charat'ter described. the combination of a mechanically supported welding torch, electromagnetic members adapted to hold a body or pieces with straight edges to be united in fixed relation, means for moving said members toward or from each other, and mechanism for producing relative drive between the torch and electromagnetic members.

WILLIAM J. BUCKLEY. 

